Combined chute and screener.



H. w. BANNER. COMBINED OHUTE AND BOREENEB. APPLICATION FILED JULY 15,1910.

Patented Apr. 25, 1911.

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314-1.) zMo'o Wihamw W W SHEA H. W. SANNER.

' COMBINED GHUTE AND SGBEENEB.

APPLIULTIOI FILED JUL! 15,. 1910, v 990, 00, Patented Apr.25, 1911.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

HARRY W. SANNER, 0F BALTIMORE, MARYLAND.

COMBINED CHUTE AND SCREENER.

To all whom it may concern:

Be it known that I, HARRY W. SANNER, a citizen of the United States,residin at Baltimore, State of Maryland, have invented certain new anduseful Improvements 1n Combined Chutes and Screeners, of which thefollowing is a specification.

My invention relates to an improvement in a combined chute and screen,the object being to provide a chute which is made in two sections, eachsection being provided with screens, the lower section having aplurality of screens of different meshes, whereby the different gradesof coal can be separated.

A further object is in providing means for covering the screens when thedevice is used as a chute.

The invention consists in certain novel features of construction andcombinations of parts which will be hereinafter fully described andpointed out in the claims.

In the accompanying drawings :-Figure 1 is a view in side elevation of acombined chute and screen when used as a chute and screen; Fig. 2 is aview in side elevation showing the invention in use as a chute; Fig. 3is a plan view of the invention in we tended position; Fig. 1 is alongitudinal sectional view of the lower section of the chute disclosingthe screens; Fig. 5 is a. transverse sectional view of the lowersection; Fig. 6 is a transverse sectional view of the lower section whenused as a chute; and Fig. 7 is a detail sectional view showing themanner of holding the doors in an open position.

A represents the chute, which consists of an upper and lower section, 1and 2, respectlvel The sides 3 of lower section 2 extend obliquely, sothat the lower edges of the sides converge toward each other. The sidesare held together by means of bars 4. The upper section 1 has the sides5 thereof of a less width than the width of the sides 3 of the lowersection, and the upper ends of the sides of the lower section are cutaway to receive the lower ends of the sides 5 of the upper section, theupper section 1 being hin ed to the lower section 2. The upper section 1is provided with an opening about midway thereof, in which is received ascreen 7. Doors 8 are hinged to the sides 5, which are adapted to closeor cover the screen when the device is used as a chute, but when thescreen 7 is in use, the doors Specification of Letters Patent.

Application filed July 15, 1910.

Patented Apr. 25, 1911.

Serial No. 572,167.

will be swung to the position shown in Fig. 7, and the buttons 9 will beswun over u on the outer edges of the sides 5 Tor hol ing the doorsopen.

Screens 10 are received between the sides 3 and the bars 4 of the lowersection, the screens being of different meshes for separating differentgrades of coal. The screens are held in position by means of turnbuttons 11. The screens can be removed and changed to dilferentpositions for sorting different grades of coal.

Referring to Figs. 6 and 7 the difference of inserting the screens inthe upper and lower sections will be noted. Fig. 7indicates the mannerof inserting the screen in the upper section, the surface of the screenbeing on a level with the bottom of the chute, while the screens in thelower section are mounted in a reverse manner from that shown in theupper section. Figs. 4, 5 and 6 indicate their position. Fig. 6indicates the position taken by the screens when the device is in use asshown in 2 and 3, but Figs. 4: and 5 indicate the position or relationof the screens when the lower section is swung at an angle from theupper section, as shown in Fig. 1.

Doors 12 are hinged to the sides 3 and extend longitudinally of thechute. Wings 13 are hinged to the transverse bars 4 and extendtransversely of the chute. When the coal is being discharged onto theupper section 1, and it is desired to screen the coal for separating orsorting it in different grades, the doors 8 will be raised and held inopen or elevated position by the buttons 9. 'The lower section 2 will beswung at an angle and beneath the upper section 1. The position taken bythe lower section 2 will allow the doors 12 to swing downward, asindicated in Figs. 4: and 5, and the wings 13 to swing downward. TheWings 13 being tapered, will engage the side walls of the doors 12 sothat a pocket will be formed beneath each screen 10, so that the coal,as it passes through the screen 7 of the upper section 1, will bedischarged onto the lower section 2, and the difi'erent grades of coalseparated, as they pass over the different mesh screens 10 of the lowersection. The coal, as it passes through the screens 10, will enter thepockets formed therebeneath by the wings 13 and doors 12, through whichthe coal will be delivered to any suitable receptacle, while the coalwhich passes ofi from the end of the upper section 1, will be deliveredinto another receptacle or vehicle from beneath, not shown.

When it is not desired to screen the coal, but merely deliver it from acar or bin to a vehicle, the lower section will take the position withrespect to the upper section 1, as shown in Figs. 2 and 3. In this instance, the doors 12 and wings 13 will be on the upper side of the lowersection 2, and will be in a lowered position, as indicated in Fig. 6,for forming a bottom for the chute of the lower section. The doors 8 ofthe upper section will be in a closed position, as indicated in Fig. 3.The upper edges or upper portion of the sides 3 will. form a support forthe doors 12 for holding them against outward movement, when the lowersection is used as a screener, as is clearly indicated in Figs. 4 and 5.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

l. A combined chute and screen comprising an upper and lower section,said sections being pivotally connected together, screens in thesections, said lower section adapted to be swung at an angle from theupper section during the screening operation, doors for covering thescreens when the lower section lies 1n the same general plane wlth theupper sectlon, said doors actlng as the chute for delivering the coal asit is discharged through the screens when the lower section is swung atan angle from the 5 sections, doors hinged longitudinally of thesections for closing the screens, and wings hinged transversely of thelower section for forming a pocket in connection with the doors of thelower section when the lower section is used as a screener.

3. A combined chute and screen comprising an upper and a lower sectionpivotally connected together, the lower section adapted to be swung atan angle from the upper section during the screening operation, screensmounted in the sect-ions, the screens of the lower section being heldtherein in a reverse position from the screen of the upper section,doors pivotally connected to the lower section, and wings pivotallyconnected to the lower section, said doors and wings forming pockets toreceive the coal as it is discharged through the different screens.

In testimony whereof I affix my signature, in the presence of twowitnesses.

HARRY W. SANNER.

Witnesses CHARLES L. MEINKEN, PI-IILIB B. ROLLE,

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, 1). C.

